paying tribute to their country's first black president. ♪ earlier in the day, mandela's grandchildren met with well wishers who shared flowers and memories of the man they call the father of their nation. he is -- >> as far as i'm concerned will always be the greatest man that -- ever lived. and i love him and may he rest in peace. >> reporter: paying their respects and the crowds will only get bigger throughout the week as the official memorial begins. children in man deal dell la's former home danced to celebrate his life. on tuesday, the township will host a memorial service at a soccer stadium where up to 100,000 people are expected. world leaders are headed to south africa to honor the antiapartheid leaders who spent 27 years in prison. he was a fellow inmate at robin island. >> in his illness, and in his death, the country is united. >> reporter: mandela will be laid to rest december 15th in his hometown of kunu. tina krause, cbs news, johannesburg. >> it's set for next wednesday in san francisco at 8:00 a.m. at city hall. it's starting monday the mayor's office will also have a